Move PolicyQuery to permission-node

Signed-off-by: Vincenzo Scamporlino <me@vinzscam.dev>

plugins/permission-node/src/policy/index.ts

@@ -14,4 +14,4 @@
  * limitations under the License.
  */
 
-export type { PermissionPolicy } from './types';
+export type { PermissionPolicy, PolicyQuery } from './types';

plugins/permission-node/src/policy/types.ts

@@ -15,11 +15,25 @@
  */
 
 import {
+  Permission,
   PolicyDecision,
-  PolicyQuery,
 } from '@backstage/plugin-permission-common';
 import { BackstageIdentityResponse } from '@backstage/plugin-auth-node';
 
+/**
+ * A query to be evaluated by the {@link PermissionPolicy}.
+ *
+ * @remarks
+ *
+ * Unlike other parts of the permission API, the policy does not accept a resource ref. This keeps
+ * the policy decoupled from the resource loading and condition applying logic.
+ *
+ * @public
+ */
+export type PolicyQuery = {
+  permission: Permission;
+};
+
 /**
  * A policy to evaluate authorization requests for any permissioned action performed in Backstage.
  *